Tuesday 1 March - Thursday 10 March 2016 (presumably): The County National Delegate Selection Meetings elect delegates to the State National Convention Delegation Selection Meeting.

Saturday 19 March 2016 (presumably): State National Delegate Selection meeting. National Convention delegates are elected. They will be bound to a Presidential contender according to the results of the primary.

This Presidential Primary coincides with a state/local primary. These coinciding primaries tend to have an impact upon voter turnout.

Tuesday 7 June 2016: South Dakota Primary. Hours 7:00a-7:00p CDT (1200-0000 UTC) / 7:00a-7:00p MDT (1300-0100 UTC). Delegate Selection: Winner-Take-All Primary. Voter Eligibility: Closed Primary.

Primary
Source: South Dakota Secretary of State.
Status: Official. Retrieved: Thursday 21 July 2016.
Included in Nationwide vote.

Tuesday 7 June 2016: All 29 of South Dakota's delegates to the Republican National Convention are allocated to the presidential contender who receives the most votes in today's South Dakota Presidential Primary. [BYLAWS OF THE SOUTH DAKOTA REPUBLICAN CENTRAL COMMITTEE SECTION VI. 9.]

In addition, 3 party leaders, the National Committeeman, the National Committeewoman, and the chairman of the South Dakota's Republican Party, will attend the convention as bound delegates by virtue of their position.

All delegates ... nominated at the regional caucuses ... shall support the candidate who receives the most votes at the ... succeeding primary election through the first ballot at the National Convention unless that candidate withdraws, suspends campaign activities, or fails to have his or her name placed in nomination at the National Convention, and that if only one candidate's name is placed in nomination at the National Convention that they shall be bound to vote for such candidate on the first ballot provided that the candidate received votes at the South Dakota primary election. [SECTION VI. 9.B.]

Friday 24 June - Saturday 25 June 2016: State Convention in Aberdeen.